diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 8bb76ee6..936ebe25 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -58,7 +58,7 @@ jobs:
           enableCrossOsArchive: true
           path: |
             build/linux
-            build/osx
+            build/macos
             build/windows
 
       - name: Set up QEMU
diff --git a/.gitignore b/.gitignore
index 1b0b07fa..9cc9bc67 100644
--- a/.gitignore
+++ b/.gitignore
@@ -55,7 +55,7 @@ PactNet/Files/pact/
 tools/
 build/tools/
 build/linux/
-build/osx/
+build/macos/
 build/windows/
 dist/
 
diff --git a/README.md b/README.md
index 7870d381..85c0eb75 100644
--- a/README.md
+++ b/README.md
@@ -42,7 +42,7 @@ Watch our [series](https://www.youtube.com/playlist?list=PLwy9Bnco-IpfZ72VQ7hce8
 
 ### Tutorial (60 minutes)
 
-[Learn everything in Pact Net in 60 minutes](https://github.com/DiUS/pact-workshop-dotnet-core-v3/)
+[Learn everything in Pact Net in 60 minutes](https://github.com/pact-foundation/pact-workshop-dotnet)
 
 ### Upgrade Guides
 
diff --git a/build/download-native-libs.sh b/build/download-native-libs.sh
index d654b7d1..04d51d7a 100755
--- a/build/download-native-libs.sh
+++ b/build/download-native-libs.sh
@@ -1,8 +1,8 @@
 #!/usr/bin/env bash
 set -euo pipefail
 
-FFI_VERSION="0.4.22"
-FFI_BASE_URL="https://github.com/you54f/pact-reference/releases/download/libpact_ffi-v$FFI_VERSION"
+FFI_VERSION="0.4.23"
+FFI_BASE_URL="https://github.com/pact-foundation/pact-reference/releases/download/libpact_ffi-v$FFI_VERSION"
 
 GREEN="\e[32m"
 YELLOW="\e[33m"
@@ -20,58 +20,62 @@ download_native() {
     # e.g.
     #   pact_ffi-windows-x86_64.dll.gz
     #   libpact_ffi-linux-x86_64.so.gz
-    #   libpact_ffi-osx-x86_64.dylib.gz
-    src_file="$file-$os-$platform.$extension.gz"
-    url="$FFI_BASE_URL/$src_file"
+    #   libpact_ffi-macos-x86_64.dylib.gz
+    src_file="$file-$os-$platform.$extension"
+    src_archive="$src_file.gz"
+    src_sha="$src_archive.sha256"
+    dest_file="$file.$extension"
+    url="$FFI_BASE_URL/$src_archive"
     sha="$url.sha256"
 
     path="$base_path/$os/$platform"
-    dest_file="$file.$extension.gz"
     mkdir -p "$path"
+    pushd $path > /dev/null
 
     echo -e "Downloading FFI library for ${YELLOW}$os/$platform${CLEAR}"
-    echo -e "    Destination: ${BLUE}$path/$dest_file${CLEAR}"
+    echo -e "    Destination: ${BLUE}$path/$src_archive${CLEAR}"
     echo -e "    URL: ${BLUE}$url${CLEAR}"
 
     echo -n "    Downloading... "
-    curl --silent -L "$url" -o "$path/$dest_file"
-    curl --silent -L "$sha" -o "$path/$dest_file.sha256"
+    curl --silent -L "$url" -o "$src_archive"
+    curl --silent -L "$sha" -o "$src_archive.sha256"
     echo -e "${GREEN}OK${CLEAR}"
 
     echo -n "    Verifying... "
 
     if [[ "$OSTYPE" == "darwin"* ]]; then
-        # OSX requires an empty arg passed to -i, but this doesn't work on Lin/Win
-        sed -Ei '' "s|\*(.*)$|\*$path/$dest_file|" "$path/$dest_file.sha256"
-        shasum -a 256 --check --quiet "$path/$dest_file.sha256"
+        shasum -a 256 --check --quiet "$src_sha"
     else
-        sed -Ei "s|\*(.*)$|\*$path/$dest_file|" "$path/$dest_file.sha256"
         if [[ "$OSTYPE" == "linux"* ]]; then
             if ldd /bin/ls >/dev/null 2>&1; then
                 ldd_output=$(ldd /bin/ls)
                 case "$ldd_output" in
                     *musl*) 
-                        sha256sum -c -s "$path/$dest_file.sha256"
+                        sha256sum -c -s "$src_sha"
                         ;;
                     *) 
-                        sha256sum --check --quiet "$path/$dest_file.sha256"
+                        sha256sum --check --quiet "$src_sha"
                         ;;
                 esac
             else
-                sha256sum --check --quiet "$path/$dest_file.sha256"   
+                sha256sum --check --quiet "$src_sha" 
             fi
         else
-            sha256sum --check --quiet "$path/$dest_file.sha256"
+            sha256sum --check --quiet "$src_sha"
         fi
     fi
 
-    rm "$path/$dest_file.sha256"
     echo -e "${GREEN}OK${CLEAR}"
 
     echo -n "    Extracting... "
-    gunzip -f "$path/$dest_file"
+    gunzip -f "$src_archive"
     echo -e "${GREEN}OK${CLEAR}"
     echo ""
+
+    mv "$src_file" "$dest_file"
+    rm "$src_sha"
+
+    popd > /dev/null
 }
 
 download_native "pact_ffi" "windows" "x86_64" "dll"
@@ -79,5 +83,7 @@ download_native "libpact_ffi" "linux" "x86_64" "so"
 download_native "libpact_ffi" "linux" "aarch64" "so"
 download_native "libpact_ffi" "linux" "x86_64-musl" "so"
 download_native "libpact_ffi" "linux" "aarch64-musl" "so"
-download_native "libpact_ffi" "osx" "x86_64" "dylib"
-download_native "libpact_ffi" "osx" "aarch64-apple-darwin" "dylib"
+download_native "libpact_ffi" "macos" "x86_64" "dylib"
+download_native "libpact_ffi" "macos" "aarch64" "dylib"
+
+echo "Successfully downloaded FFI libraries"
diff --git a/samples/OrdersApi/Consumer.Tests/pacts/Fulfilment API-Orders API.json b/samples/OrdersApi/Consumer.Tests/pacts/Fulfilment API-Orders API.json
index 00079231..3296cc2a 100644
--- a/samples/OrdersApi/Consumer.Tests/pacts/Fulfilment API-Orders API.json	
+++ b/samples/OrdersApi/Consumer.Tests/pacts/Fulfilment API-Orders API.json	
@@ -199,8 +199,8 @@
   ],
   "metadata": {
     "pactRust": {
-      "ffi": "0.4.21",
-      "models": "1.2.0"
+      "ffi": "0.4.23",
+      "models": "1.2.5"
     },
     "pactSpecification": {
       "version": "4.0"
diff --git a/src/PactNet.Abstractions/Exceptions/PactVerificationFailedException.cs b/src/PactNet.Abstractions/Exceptions/PactVerificationFailedException.cs
new file mode 100644
index 00000000..63daa057
--- /dev/null
+++ b/src/PactNet.Abstractions/Exceptions/PactVerificationFailedException.cs
@@ -0,0 +1,36 @@
+using System;
+
+namespace PactNet.Exceptions
+{
+    /// <summary>
+    /// Pact verification failed
+    /// </summary>
+    [Serializable]
+    public class PactVerificationFailedException : PactFailureException
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="PactVerificationFailedException" /> class
+        /// </summary>
+        public PactVerificationFailedException()
+            : this("The pact failed verification")
+        {
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="PactVerificationFailedException" /> class
+        /// </summary>
+        /// <param name="message">The message that describes the error</param>
+        public PactVerificationFailedException(string message) : base(message)
+        {
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="PactVerificationFailedException" /> class
+        /// </summary>
+        /// <param name="message">The error message that explains the reason for the exception</param>
+        /// <param name="innerException">The exception that is the cause of the current exception, or a null reference (Nothing in Visual Basic) if no inner exception is specified</param>
+        public PactVerificationFailedException(string message, Exception innerException) : base(message, innerException)
+        {
+        }
+    }
+}
diff --git a/src/PactNet/PactNet.csproj b/src/PactNet/PactNet.csproj
index 9a67c967..7fce90b1 100644
--- a/src/PactNet/PactNet.csproj
+++ b/src/PactNet/PactNet.csproj
@@ -60,14 +60,14 @@
       <CopyToOutputDirectory Condition="'$(IsLinuxMuslArm64)' == 'True'">PreserveNewest</CopyToOutputDirectory>
       <Visible>false</Visible>
     </Content>
-    <Content Include="$(MSBuildProjectDirectory)\..\..\build\osx\x86_64\libpact_ffi.dylib">
+    <Content Include="$(MSBuildProjectDirectory)\..\..\build\macos\x86_64\libpact_ffi.dylib">
       <Link>libpact_ffi.dylib</Link>
       <PackagePath>runtimes/osx-x64/native</PackagePath>
       <Pack>true</Pack>
       <CopyToOutputDirectory Condition="'$(IsOSX)' == 'True' And '$(IsArm64)' == 'False'">PreserveNewest</CopyToOutputDirectory>
       <Visible>false</Visible>
     </Content>
-    <Content Include="$(MSBuildProjectDirectory)\..\..\build\osx\aarch64-apple-darwin\libpact_ffi.dylib">
+    <Content Include="$(MSBuildProjectDirectory)\..\..\build\macos\aarch64\libpact_ffi.dylib">
       <Link>libpact_ffi.dylib</Link>
       <PackagePath>runtimes/osx-arm64/native</PackagePath>
       <Pack>true</Pack>
diff --git a/src/PactNet/Verifier/InteropVerifierProvider.cs b/src/PactNet/Verifier/InteropVerifierProvider.cs
index a30a5b34..c0245296 100644
--- a/src/PactNet/Verifier/InteropVerifierProvider.cs
+++ b/src/PactNet/Verifier/InteropVerifierProvider.cs
@@ -235,7 +235,7 @@ public void Execute()
 
             string error = result switch
             {
-                1 => "Pact verification failed",
+                1 => throw new PactVerificationFailedException("Pact verification failed"),
                 2 => "Failed to run the verification",
                 _ => $"An unknown error occurred: {result}"
             };
diff --git a/tests/PactNet.Tests/Verifier/InteropVerifierProviderTests.cs b/tests/PactNet.Tests/Verifier/InteropVerifierProviderTests.cs
index 5a8d5088..91d4b023 100644
--- a/tests/PactNet.Tests/Verifier/InteropVerifierProviderTests.cs
+++ b/tests/PactNet.Tests/Verifier/InteropVerifierProviderTests.cs
@@ -53,7 +53,7 @@ public void HappyPathIntegrationTest()
 
             Action action = () => provider.Execute();
 
-            action.Should().Throw<PactFailureException>();
+            action.Should().Throw<PactVerificationFailedException>();
         }
 
         [Fact]
@@ -73,7 +73,7 @@ public void SetPublishOptions_NoBuildUri_IsValid()
 
             Action action = () => provider.Execute();
 
-            action.Should().Throw<PactFailureException>();
+            action.Should().Throw<PactVerificationFailedException>();
         }
     }
 }
diff --git a/tests/PactNet.Tests/data/v2-consumer-integration.json b/tests/PactNet.Tests/data/v2-consumer-integration.json
index 2d38dcef..27a97e44 100644
--- a/tests/PactNet.Tests/data/v2-consumer-integration.json
+++ b/tests/PactNet.Tests/data/v2-consumer-integration.json
@@ -74,8 +74,8 @@
   ],
   "metadata": {
     "pactRust": {
-      "ffi": "0.4.21",
-      "models": "1.2.0"
+      "ffi": "0.4.23",
+      "models": "1.2.5"
     },
     "pactSpecification": {
       "version": "2.0.0"
diff --git a/tests/PactNet.Tests/data/v3-consumer-integration.json b/tests/PactNet.Tests/data/v3-consumer-integration.json
index fe699d08..fbdb566e 100644
--- a/tests/PactNet.Tests/data/v3-consumer-integration.json
+++ b/tests/PactNet.Tests/data/v3-consumer-integration.json
@@ -96,9 +96,7 @@
                 }
               ]
             }
-          },
-          "header": {},
-          "query": {}
+          }
         },
         "method": "POST",
         "path": "/things",
@@ -132,8 +130,8 @@
   ],
   "metadata": {
     "pactRust": {
-      "ffi": "0.4.21",
-      "models": "1.2.0"
+      "ffi": "0.4.23",
+      "models": "1.2.5"
     },
     "pactSpecification": {
       "version": "3.0.0"
diff --git a/tests/PactNet.Tests/data/v3-message-consumer-integration.json b/tests/PactNet.Tests/data/v3-message-consumer-integration.json
index be660b0d..2819d19c 100644
--- a/tests/PactNet.Tests/data/v3-message-consumer-integration.json
+++ b/tests/PactNet.Tests/data/v3-message-consumer-integration.json
@@ -36,8 +36,8 @@
       "language": "C#"
     },
     "pactRust": {
-      "ffi": "0.4.21",
-      "models": "1.2.0"
+      "ffi": "0.4.23",
+      "models": "1.2.5"
     },
     "pactSpecification": {
       "version": "3.0.0"
diff --git a/tests/PactNet.Tests/data/v3-message-integration.json b/tests/PactNet.Tests/data/v3-message-integration.json
index b2ed0dab..783a6cf0 100644
--- a/tests/PactNet.Tests/data/v3-message-integration.json
+++ b/tests/PactNet.Tests/data/v3-message-integration.json
@@ -16,8 +16,8 @@
   ],
   "metadata": {
     "pactRust": {
-      "ffi": "0.4.21",
-      "models": "1.2.0"
+      "ffi": "0.4.23",
+      "models": "1.2.5"
     },
     "pactSpecification": {
       "version": "3.0.0"
diff --git a/tests/PactNet.Tests/data/v3-server-integration.json b/tests/PactNet.Tests/data/v3-server-integration.json
index b2652df8..e1e23302 100644
--- a/tests/PactNet.Tests/data/v3-server-integration.json
+++ b/tests/PactNet.Tests/data/v3-server-integration.json
@@ -46,8 +46,8 @@
   ],
   "metadata": {
     "pactRust": {
-      "ffi": "0.4.21",
-      "models": "1.2.0"
+      "ffi": "0.4.23",
+      "models": "1.2.5"
     },
     "pactSpecification": {
       "version": "3.0.0"
diff --git a/tests/PactNet.Tests/data/v4-combined-integration.json b/tests/PactNet.Tests/data/v4-combined-integration.json
index db795d37..ee46b3f3 100644
--- a/tests/PactNet.Tests/data/v4-combined-integration.json
+++ b/tests/PactNet.Tests/data/v4-combined-integration.json
@@ -106,9 +106,7 @@
                 }
               ]
             }
-          },
-          "header": {},
-          "query": {}
+          }
         },
         "method": "POST",
         "path": "/things",
@@ -187,8 +185,8 @@
       "language": "C#"
     },
     "pactRust": {
-      "ffi": "0.4.21",
-      "models": "1.2.0"
+      "ffi": "0.4.23",
+      "models": "1.2.5"
     },
     "pactSpecification": {
       "version": "4.0"
diff --git a/tests/PactNet.Tests/data/v4-consumer-integration.json b/tests/PactNet.Tests/data/v4-consumer-integration.json
index 8ae7ea04..d706aebe 100644
--- a/tests/PactNet.Tests/data/v4-consumer-integration.json
+++ b/tests/PactNet.Tests/data/v4-consumer-integration.json
@@ -106,9 +106,7 @@
                 }
               ]
             }
-          },
-          "header": {},
-          "query": {}
+          }
         },
         "method": "POST",
         "path": "/things",
@@ -152,8 +150,8 @@
   ],
   "metadata": {
     "pactRust": {
-      "ffi": "0.4.21",
-      "models": "1.2.0"
+      "ffi": "0.4.23",
+      "models": "1.2.5"
     },
     "pactSpecification": {
       "version": "4.0"
diff --git a/tests/PactNet.Tests/data/v4-message-consumer-integration.json b/tests/PactNet.Tests/data/v4-message-consumer-integration.json
index 5b83ed5b..6dc2bd5e 100644
--- a/tests/PactNet.Tests/data/v4-message-consumer-integration.json
+++ b/tests/PactNet.Tests/data/v4-message-consumer-integration.json
@@ -41,8 +41,8 @@
       "language": "C#"
     },
     "pactRust": {
-      "ffi": "0.4.21",
-      "models": "1.2.0"
+      "ffi": "0.4.23",
+      "models": "1.2.5"
     },
     "pactSpecification": {
       "version": "4.0"